<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <meta http-equiv="X-UA-Compatible" content="IE=edge">
 <meta name="viewport" content="width=device-width,initial-scale=1.0">
 <title>this绑定规则实验</title>
</head>
<body>
 <script>
function foo() {
 console.log("foo:", this);
}

var obj = {
 name: "gkd",
 bar: function() {
 console.log("bar:", this);
 }
};
var baz = obj.bar;
baz();
function test(fn) {
 fn();
}
test(obj.bar);
"use strict";
function foo() {
 console.log("foo (strict):", this);
}
foo();
 </script>
 </body>
 </html>